Creep strength of reduced activation ferritic/martensitic steel Eurofer’97

Creep rupture strength of tempered martensitic steel Eurofer’97 has been investigated. Different products form (plate and bar) have been tested in the temperature range from 450 °C to 650 °C at different loads. No significant differences in the creep rupture properties have been found between the studied product forms. The Eurofer’97 has shown adequate creep rupture strength levels at short creep rupture tests, similar to those of the F-82 H mod. steel. However, for long testing times (>9000 h) the results available up to now at 500 °C and 550 °C seem to indicate a change in the creep degradation mechanism.